MLX91207

High Speed Hall Sensor IC

39010091207

Page 3 of 21

Data Sheet

Rev. 17

July/12

3 Table of Contents

1 Functional Diagram................................................................................................................................................................................ 1

2 General Description............................................................................................................................................................................... 2

3 Table of Contents .................................................................................................................................................................................. 3

4 Glossary of Terms ................................................................................................................................................................................. 4

5 Absolute Maximum Ratings ................................................................................................................................................................... 4

6 Pin Definitions and Descriptions ............................................................................................................................................................ 4

7 General Electrical Specifications............................................................................................................................................................ 5

8 Magnetic specification ........................................................................................................................................................................... 6

9 Output specification ............................................................................................................................................................................... 6

9.1 Timing specification........................................................................................................................................................................ 6

9.2 Accuracy Specification ................................................................................................................................................................... 7

9.3 Remarks to the achievable accuracy .............................................................................................................................................. 7

10 Thermometer Output ........................................................................................................................................................................... 7

11 Programmable Items ........................................................................................................................................................................... 8

11.1 Customer Parameter Table .......................................................................................................................................................... 8

11.2 Description of Programmable Items.............................................................................................................................................. 9

11.2.1 Output Mode Configuration (OUTMODE) .............................................................................................................................. 9

11.2.2 Output impedance mode (DIAGINFAULT) ............................................................................................................................ 9

11.2.3 Sensitivity Programming (ROUGHGAIN and FINEGAIN) ...................................................................................................... 9

11.2.4 Offset Compensation VOQ (XA)............................................................................................................................................ 9

11.2.5 Sensitivity polarity (PLATEPOL).......................................................................................................................................... 10

11.2.6 Clamping Level Programming (CLAMPLOW, CLAMPHIGH) ............................................................................................... 10

11.2.7 Bandwidth and Filter Programming (FILTER) ...................................................................................................................... 11

11.2.8 Power Limitation (OUTSLOPE) ........................................................................................................................................... 11

11.2.9 Output Ratiometry (RATIODIS) ........................................................................................................................................... 12

11.2.10 Sensitivity Temperature Drift Programming (TC1ST, TC2ND_COLD, TC2ND_HOT) ........................................................ 12

11.2.11 Offset Temperature Drift Programming (OFFDRIFT_COLD, OFFDRIFT_HOT)................................................................. 12

11.2.12 Product Identification (MLXID, CSTID) .............................................................................................................................. 13

12 Self Diagnostic................................................................................................................................................................................... 14

13 Applications Information..................................................................................................................................................................... 15

13.1 Current Measurement................................................................................................................................................................. 15

13.2 Linear Position............................................................................................................................................................................ 15

14 Recommended Application Diagrams ................................................................................................................................................ 16

14.1 Resistor and Capacitor Values ................................................................................................................................................... 16

14.2 Pull down resistor for diagnostic low ........................................................................................................................................... 16

14.3 Pull up resistor for diagnostic high .............................................................................................................................................. 16

15 Standard information regarding manufacturability of Melexis products with different soldering processes .......................................... 17

16 ESD Precautions ............................................................................................................................................................................... 17

17 Package Information.......................................................................................................................................................................... 18

17.1 SOIC8 Package Dimensions ...................................................................................................................................................... 18

17.2 SOIC8 Pin Out and Marking ....................................................................................................................................................... 19

18 Related documents and tools............................................................................................................................................................. 20

18.1 Related documents .................................................................................................................................................................... 20

18.2 Related software ........................................................................................................................................................................ 20

18.3 Related hardware ....................................................................................................................................................................... 20

19 Disclaimer.......................................................................................................................................................................................... 21